Guyatone GA-1050 / GA-1050S - Normal preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Guyatone GA-1050 and GA-1050S were among the manufacturer's most professional offerings, featuring onboard reverb for jazz and pop stage use. These amplifiers represented the peak of Guyatone's tube engineering and targeted the growing professional Japanese music market.

• Years produced: 1964–1970
• Made in: Japan
• Channels: 2
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6L6

Tags: vintage, clean.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.